For the first time, researchers have found that stress can leave an epigenetic mark on sperm, which then alters the offspring’s hypothalamic-pituitary-adrenal (HPA) axis, a part of the brain that deals with responding to stress. […]

The experiment was conducted with preadolescent and adult male mice. […]

“These findings suggest one way in which paternal-stress exposure may be linked to such neuropsychiatric diseases.”